Method of Identifying a User by Means of Modified Biometric Characteristics, and a Database for Implementing the Method
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Abstract
The present invention relates to a method of identifying a user, the method being implemented by means of a database containing personal data of users and containing for each user at least one unmodified biometric characteristic (E1,i), at least one biometric characteristic (E2,i) that has been modified and that is accessible from the unmodified biometric characteristic, and at least one item of identification data (D) that is accessible from a code identifying the modification that has implemented on the second biometric characteristic. The method comprises the steps of comparing first and second biometric characteristics (e1,i) read from the user with the characteristics in the database in order to determine (5) what modification has been implemented and to deduce therefrom the code identifying the modification; and extracting (6) the identification data by means of the code as deduced in this way. The invention also provides a database for implementing the method.
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Citations
10 Claims
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1-5. -5. (canceled)
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6. A method of identifying a user, wherein it is implemented by means of a database of the personal data of users, containing for each user at least one unmodified first biometric characteristic (E1,i), at least one second biometric characteristic (E2,i) that is accessible from the unmodified first biometric characteristic and that has been modified by at least one modification (T), and at least one item of identification data (D) that is accessible from a code identifying the modification that has been implemented on the second biometric characteristic, and wherein the method comprises the steps of:
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reading (1) from the user a first biometric characteristic (e1,i) and comparing it with the unmodified first biometric characteristics in the database in order to identify the unmodified first biometric characteristic that corresponds to the user; reading (4) from the user a second biometric characteristic (e2,i) and comparing it with the modified second biometric characteristic that is accessible from the unmodified first biometric characteristic of the user in order to determine (5) what modification has been implemented and thus deduce the code identifying the modification; and extracting (6) the identification data by means of the code as deduced in this way. - View Dependent Claims (7)
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8. A database of the personal data of users, the database containing, for each user, at least one unmodified first biometric characteristic (E1,i), at least one second biometric characteristic (E′
- 2,i) that is accessible from the unmodified first biometric characteristic and that has been modified by means of at least one modification (T), and at least one item of identification data (D) that is accessible from a code identifying the modification that has been performed on the second biometric characteristic.
- View Dependent Claims (9, 10)
Specification